Ag7S6Ta
Ag7S6Ta is a semiconducting ternary sulfide compound that is theoretically stable enough to be synthesized for research purposes.
About Ag7S6Ta
Ag7S6Ta is a complex ternary sulfide composed of silver, sulfur, and tantalum. Its electronic character identifies it as a semiconductor, positioning it as a subject of interest for researchers investigating functional inorganic materials with tunable transport properties.
Due to its near-hull thermodynamic stability, this compound is considered a promising candidate for experimental synthesis. The existence of multiple reported structures across databases highlights its structural versatility and potential for further exploration in materials science research.
Key Properties
Cross-validated computational properties for Ag7S6Ta, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Ag7S6Ta, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| Pc (No. 7) | monoclinic | 0.51 | 0.0185 | -4.515 | 6.12 |
| P1 (No. 1) | triclinic | 0.69 | 0.0581 | -4.476 | 5.87 |
| — | — | — | — | — | — |
| — | — | — | — | — | 6.09 |
| — | — | — | — | — | 6.09 |
Applications
Where Ag7S6Ta is used.
Frequently Asked Questions
Common questions about Ag7S6Ta, answered from cross-validated data.
What is Ag7S6Ta?
Ag7S6Ta is a semiconducting ternary sulfide compound that is theoretically stable enough to be synthesized for research purposes.
What is Ag7S6Ta used for?
What is the band gap of Ag7S6Ta?
Is Ag7S6Ta a metal, semiconductor, or insulator?
Is Ag7S6Ta thermodynamically stable?
What is the crystal structure of Ag7S6Ta?
What is the density of Ag7S6Ta?
How many polymorphs of Ag7S6Ta are known?
What elements does Ag7S6Ta contain?
Where does the data for Ag7S6Ta come from?
How It Compares
As a unique ternary sulfide, Ag7S6Ta occupies a specialized niche in inorganic chemistry, serving as a distinct example of how silver-rich chalcogenides can exhibit semiconducting behavior while maintaining a stable structural framework.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- alexandria — Data from alexandria.
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
Analyze Ag7S6Ta in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →